EP1568896B1 - Middle and/or corner legs of sheet metal for transport and storage containers for liquids and bulk materials - Google Patents

Description

The invention relates to middle feet and / or corner feet made of sheet metal for transport and storage containers for liquids and bulk materials, with a pallet-like base, a standing on this inner container made of plastic with a closable filler neck and a discharge nozzle for connecting a removal fitting and a grid or Metal jacket formed outer sheath are equipped, the base frame has a bottom for supporting the inner container on the middle feet and corner feet, which are mounted on a base frame made of sheet metal or runners made of metal, plastic or wood and in which the bottom of the underframe and the outer jacket of the inner container are attached.

When mounting from the DE 100 62 088 C2 known transport and storage containers for liquids of the type described above, the sub-frame of the mesh basket made of metal and the sheet metal bottom of the pallet-like base on which the plastic inner container for liquids is bolted to the corner and middle feet of the base and the feet are with the Foot frame of the base welded. Through the use of different joining techniques and the consequent considerable installation effort and the need for small parts for assembly such as sheet metal screws and washers, the manufacturing cost of liquid containers are correspondingly expensive.

The invention has the object of further developing the center feet and / or the corner feet with a view to simplifying the assembly of a transport and storage container.

This object is achieved by means of middle feet and / or corner feet with the features of claim 1.

The subclaims contain advantageous and expedient developments of the invention.

The idea of the invention is based on integrating hollow rivets and corresponding rivet holes in the individual components of a generic transport and storage container for liquids and bulk material, so that only one joining technique, namely riveting is used for the connection of the components during assembly and separate hollow rivets with a Setting head are no longer necessary. In this way, the assembly cost is reduced and the production costs are reduced.

Fig. 1

eine perspektivische Darstellung eines Transport- und Lagerbehälters für Flüssigkeiten mit einem palettenartigen Untergestell aus Metall,

Fig. 2

eine Sprengdarstellung des Transport- und Lagerbehälters nach Fig. 1 ohne Innenbehälter,

Fig. 3

eine perspektivische Innenansicht einer ersten Ausführungsform eines Eckfußes des Untergestells des Transport- und Lagerbehälters in vergrößerter Darstellung,

Fig. 4

eine vergrößerte Schnittdarstellung der Hohlnietverbindungen des Eckfußes nach Fig. 3 mit dem äußeren Rand des Bodens des Untergestells und dem Unterrahmen des Gitterkorbs sowie dem Fußrahmen des Untergestells,

Fig. 5

eine perspektivische Innenansicht einer weiteren Ausführungsform eines Eckfußes des Untergestells des Transport- und Lagerbehälters in vergrößerter Darstellung,

Fig. 6

eine perspektivische Ansicht einer ersten Ausführungsform eines seitlichen Mittelfußes des Untergestells des Transport- und Lagerbehälters in vergrößerter Darstellung,

Fig. 7

eine Seitenansicht des seitlichen Mittelfußes nach Fig. 6,

Fig. 8

eine vergrößerte Schnittdarstellung der Hohlnietverbindungen des Mittelfußes nach den Figuren 6 und 7 mit dem äußeren Rand des Bodens des Untergestells und dem Unterrahmen des Gitterkorbs sowie dem Fußrahmen des Untergestells,

Fig. 9

eine perspektivische Ansicht einer weiteren Ausführungsform eines Mittelfußes des Untergestells des Transport- und Lagerbehälters in vergrößerter Darstellung,

Fig. 10

eine perspektivische Innenansicht einer dritten Ausführungsform eines Mittelfußes des Untergestells in vergrößerter Darstellung,

Fig. 11

die Hohlnietverbindungen des Unterrahmens des Gitterkorbs mit dem äußeren Rand des Bodens des Untergestells im Bereich der vorderen Auslaufmulde in vergrößerter Darstellung,

Fig. 12

eine perspektivische Darstellung eines Transport- und Lagerbehälters mit einem mit Holzkufen ausgestatteten Untergestell und

Fig. 13

eine perspektivische Schnittdarstellung der Hohlnietverbindungen eines seitlichen Mittelfußes mit dem äußeren Rand des Bodens des Untergestells und dem Unterrahmen des Gitterkorbs sowie mit einer Holzkufe des Untergestells des Behälters nach Fig. 12.

The invention is explained below with reference to drawings, which show:

Fig. 1

a perspective view of a transport and storage container for liquids with a pallet-like base made of metal,

Fig. 2

an exploded view of the transport and storage container after Fig. 1 without inner container,

Fig. 3

an interior perspective view of a first embodiment of a Eckfußes of the undercarriage of the transport and storage container in an enlarged view,

Fig. 4

an enlarged sectional view of the Hohlnietverbindungen the Eckfußes after Fig. 3 with the outer edge of the bottom of the base frame and the sub-frame of the mesh basket and the base frame of the base frame,

Fig. 5

an internal perspective view of another embodiment of a Eckfußes of the undercarriage of the transport and storage container in an enlarged view,

Fig. 6

a perspective view of a first embodiment of a lateral metatarsal of the undercarriage of the transport and storage container in an enlarged view,

Fig. 7

a side view of the lateral metatarsus after Fig. 6 .

Fig. 8

an enlarged sectional view of the Hohlnietverbindungen the metatarsus after FIGS. 6 and 7 with the outer edge of the bottom of the base frame and the sub-frame of the mesh basket and the base frame of the base frame,

Fig. 9

a perspective view of another embodiment of a metatarsus of the undercarriage of the transport and storage container in an enlarged view,

Fig. 10

an interior perspective view of a third embodiment of a metatarsus of the underframe in an enlarged view,

Fig. 11

the Hohlnietverbindungen the sub-frame of the mesh basket with the outer edge of the bottom of the underframe in the region of the front outlet trough in an enlarged view,

Fig. 12

a perspective view of a transport and storage container with a wooden skids equipped base and

Fig. 13

a perspective sectional view of the Hohlnietverbindungen a lateral metatarsal with the outer edge of the bottom of the base frame and the lower frame of the mesh basket and with a wooden skid of the underframe of the container according to Fig. 12 ,

The transport and storage container 6 used as disposable and reusable container after the FIGS. 1 and 2 for liquids and bulk has as main components a replaceable, cuboid inner container 7 made of plastic, which is equipped with a closable with a lid 9 filler 8 in the upper floor 10 and a discharge nozzle 11 in the region of the lower floor 12 for connection of a withdrawal and Spülhahns 13 , a formed as a mesh basket 14 outer shell of intersecting horizontal and vertical bars 15, 16 made of metal and a pallet-like base 17 made of metal with euronormgerechten length and width dimensions.

The pallet-like undercarriage 17 of the transport and storage container 6 has a base 18 made of sheet metal for supporting the inner container 7. The base 18 of the underframe 17 rests on four corner feet 19-22 and one rear metatarsal 23 of sheet metal, a front, formed from the bottom 18 of the middle foot 24, which is disposed below the removal and Spülhahns 13 of the inner container 7, as well as on two lateral middle feet 25, 26. Corner and middle feet 19 - 26 of the undercarriage 17 are on attached to a foot frame 27 made of metal.

The corner foot 19 of the undercarriage 17 of the transport and storage container 6 according to the Figures 3 and 4 is formed by a curved tray plate 28 with an upper support edge 29 for supporting the outer edge 30 of the flat-trough-like bottom 18 of the base frame 17 and the lower frame 31 of the formed as a mesh basket 14 outer sheath and a lower Aufstandsrand 32, with which the Eckfuß 19 on the Fußrahmen 27 of the undercarriage 17 is. When stacking a plurality of transport containers 6, the respectively stacked transport container is supported by the lower Aufstandsrand 32 of the corner feet 19 - 22 on the upper frame 33 of the mesh basket 14 of each stacked transport container.

At the two outer portions 29a, 29b of the upper Abstützrandes 29 of the shell plate 28 of the Eckfußes 19 are two upper, hollow Nietschäfte 34, 34 and at the two outer portions 32a, 32b of the lower Aufstandsrandes 32 of the shell plate 28, two lower, hollow Nietschäfte 35, 35 arranged. The upper and lower rivet shanks 34, 35 project upwards or downwards via the corner foot 19. The lower Rivet shanks 35, 35 on the shell plate 28 of the Eckfußes 19 are offset from the upper rivet shanks 34, 34 parallel inwardly and vertically according to the vertical distance 36 of the upper Abstützrandes 29 and the lower Aufstandsrandes 32 of the Eckfußes 19 against each other.

In each case an upper and a lower rivet shank 34, 35 of the Eckfußes 19 are formed by the two bent ends of a pipe section 37, the pipe sections 37, 37 at two of the outer edges 28 a, 28 b of the shell plate 28 of the Eckfußes 19 inwardly angled, bevelled , outer legs 38, 39 integrally formed, preferably are rolled.

In a modified embodiment of the Eckfußes 19, the pipe sections 37, each with an upper and a lower rivet shank 34, 35 welded to the tray plate 28.

By the on the inside of the outer legs 38, 39 of the Eckfußes 19 rolled pipe sections 37, each having an upper and a lower rivet shank 34, 35, the legs 38, 39 of the Eckfußes 19 stiffened. By this stiffening damage to the corner feet 19 - 22 when driving under the undercarriage 17 of a transport and storage container 6 and a displacement of the container by the gripping arms of a transport vehicle, such as a Gabelsteplers avoided.

When mounting the undercarriage 17 and the mesh basket 14 of a transport and storage container 6, the upper rivet shanks 34 of the corner feet 19 - 22 by corresponding congruent rivet holes 40, 41 in the outer edge 30 of the bottom 18 and in the region of the rivet holes 41 flattened sub-frame 31 of the mesh basket 14 pushed through and with corresponding rivet holes 42 provided, flattened in the same foot frame 27 of the base frame 17 is placed on the lower Nietschäfte 35 of the corner feet 19 - 22. Subsequently, the flattened in the region of the rivet holes 41 subframe 31 of the mesh basket 14 protruding, free ends 34a of the upper Nietschäfte 34 and over the flattened in the rivet 42 foot frames 27 of the frame 17 above lower rivets 35 of the corner feet 19 - 22 with a riveting tool to closing heads 43 deformed and thus the corner feet 19 - 22 firmly riveted on the one hand to the bottom 18 and the lower frame 31 of the mesh basket 14 and on the other hand with the foot frame 27.

In a further embodiment of a Eckfußes 19 according to FIG. 5 the upper rivet shanks 34, 34 on the two outer edges 28a, 28b of a shell plate 28 and the lower Nietschäfte 35, 35 at two of the edges 28a, 28b of the shell plate 28 inwardly angled, outer legs 44, 45 are rolled.

Furthermore, there is the possibility of the corner 19 after FIG. 5 the upper and lower rivet shanks 34, 35 to the shell plate 28 and at its legs 44, 45 to be welded.

The lateral middle feet 25, 26, one of which 25 in the FIGS. 6 to 8 and the rear midfoot 23 of the undercarriage 17 are in the form of an open box 46 having an upper wall 47 having a support surface 28 and a bottom wall 49 having a footprint 50, two rolled onto the two side walls 51, 52 of the box 46 Pipe sections 53, 53, each having a lower rivet shank 35 and two upper rivet shafts 34, 34 which are rolled onto the support surface 48 of the upper box wall 47. The middle feet 23, 25, 26 are secured by means of the upper and lower rivet shanks 34, 35, whose free ends 34a, 35a are deformable to closing heads 43, in the same manner as the corner feet 19 - 22 with the outer edge 30 of the bottom 18 and the subjacent frame 31 of the mesh basket 14 and the Rivet frame 27 riveted.

The bottom wall 49 of the two lateral middle feet 25, 26 has on the inside a support surface 54 for each one of the two downwardly bent outer ends 56 of a central stiffening web 55 of the undercarriage floor 18, and from the lower box wall 49 of the middle feet 25, 26 are two inwardly directed, hollow rivet shanks 57, 58 for riveting the middle feet are formed with the ends 56 of the stiffening web 55 of the undercarriage floor 18 ( FIGS. 2 . 6-8 ).

Instead of riveting, the lateral center feet 25, 26 can be connected to the ends 56 of the stiffening web 55 of the underbody floor 18 by a joining method known as clinching. It is also possible to weld the rivet shanks 34, 35, 57, 58 as separate sleeves to the lateral middle feet 25, 26.

FIG. 9 shows a lateral midfoot 25 of the underframe 17 with a segmented, one-piece box shape 46th

The in FIG. 10 illustrated lateral center leg 25 of the undercarriage 17 has the shape of an open box 46 with an upper, a support surface 48 having wall 47 and a bottom wall 49 with a footprint 50 and two of the two bevelled side walls 51, 52 of the box 46 rolled pipe sections 53, 53 with two bent ends, each forming an upper and a lower rivet shank 34, 35. The lower wall 49 of the lateral metatarsus 25 has an inner support surface 54 for one of the two ends 56 of the central stiffening web 55 of the underbody bottom 18 and two Nietschäfte 57, 58 for riveting the metatarsus with one end 56 of the stiffening web 55.

According to FIG. 11 serve to connect the sub-frame 31 of the mesh basket 14 with the underframe bottom 18 on both sides of the front, with the bottom integrally manufactured metatarsus 24 each two formed from the lower frame 31, hollow Nietschäfte 59, 59, through the rivet holes 40 in the outer edge 30 of the bottom 18 pushed through and whose free ends 59a are deformed by means of a riveting tool against the bottom 60 of the bottom edge 30 to closing heads 43.

Instead of rivet shanks 59 formed from the sub-frame 31 of the mesh basket 14, separate hollow rivets may be used for riveting the sub-frame of the mesh basket to the base floor 18.

According to FIG. 2 the front metatarsal 24 of the undercarriage 17 is fastened to the foot frame 27 by means of a hollow rivet 61 with a setting head.

FIG. 12 shows a transport and storage container 6 for liquids, the base 17 is equipped with wooden skids 62.

For fixing the in FIG. 13 shown lateral midfoot 25 of the undercarriage 17 on a wooden skid 62 of the undercarriage 17, the two lower rivet shanks 35 of the midfoot 25 are pushed through corresponding countersunk holes 63 of the timber 62. Subsequently, one washer each 64 are pushed onto the free, over the wooden skid 62 projecting ends 35a of the rivet shanks 35 and then the ends 35a of the rivet shanks 35 are deformed by means of a riveting tool to closing heads 43 which are recessed in the recess 65 of the counterbores 63.

Similarly, the second lateral midfoot 26 and the rear midfoot 23 and the four corner feet 19-22 are mounted on the skids 62 of the undercarriage 17. For fixing the front metatarsus 24 on the middle wooden skid 62 of the undercarriage 17, a tubular rivet is used with setting head.

reference numeral

6

Transport and storage containers

7

Inner container of 6

8th

Filler neck of 7

9

Lid of 8

10

upper floor of 7

11

Discharge of 7

12

bottom of 7

13

Withdrawal and rinsing tap of 7

14

Mesh basket of 6

15

horizontal bar of 14

16

vertical bar of 14

17

pallet-like underframe

18

Bottom of 17

19-22

Corner foot of 17

23

rear metatarsus of 17

24

anterior metatarsus of 17

25.26

lateral metatarsus of 17

27

Foot frame of 17

28

Tray plate from 19

28a, 28b

outer edge of 28

29

upper support edge of 28

29a, 29b

outer section of 29

30

outer edge of 18

31

Subframe of 14

32

lower riot of 28

32a, 32b

outer section of 32

33

Upper frame of 14

34

upper rivet on 19

34a

free end of 34

35

lower rivet at 19

35a

free end of 35

36

Vertical distance of 29.32

37

pipe section

38.39

outer thigh at 28

40

Rivet hole in 30

41

Rivet hole in 31

42

Rivet hole in 27

43

Closing head from 34,35,59

44.45

Legs at 28a, 28b

46

Box of 23,25,26

47

upper wall of 46

48

Support surface of 47

49

bottom wall of 46

50

Footprint of 46

51.52

Sidewall of 46

53

Pipe piece at 51.52

54

Support surface of 49

55

Stiffening bridge of 18

56

bent end of 55

57.58

Riveting at 49

59

Riveting on 31

59a

free end of 59

60

Bottom of 30

61

rivet

62

Wooden skid of 17

63

Counterbore in 62

64

washer

65

Deepening of 63

Claims (9)

1. Central feet and/or corner feet made of sheet metal for transport and storage containers (6) for liquids and bulk goods, which are equipped with a pallet-like understructure (17), with an inner container (7) standing on the same, being made of plastic and having a closeable filler neck (8) and a drain neck (11) for connecting a tapping armature (13), as well as with an outer jacket that is embodied as a grid basket (14) or as a sheet metal jacket, wherein the understructure (17) features a bottom (18) for supporting the inner container (7) on the central feet (23-26) and on the corner feet (19-22), said feet being mounted onto a foot frame (27) made of metal or onto skids (62) made of metal, plastic or wood, and the bottom (18) of the understructure (17) as well as the outer jacket of the inner container (7) being attached to said feet, characterised in that the central feet (23-26) and/or the corner feet (19-22) feature upper and lower rivet stems (34,35) which are moulded thereto in one piece or welded thereto separately, and which upwardly and downwardly project beyond the corner feet (19-22) or the central feet (23,25,26) and whose free ends (34a,35a) can be deformed so as to form a closing head (43) for attaching the subframe (31) of the grid basket (14) or the lower edge of a sheet metal jacket and the outer edge (30) of the sheet metal bottom (18) of the understructure (17) on the corner feet (19-22) and on the central feet (23,25,26) and for attaching the corner feet (19-22) and the central feet (23,25,26) on the foot frame (27) of the understructure (17) for embodying a tubular rivet connection.
2. The central feet and/or the corner feet according to claim 1, characterised in that the upper and the lower rivet stems (34,34;35,35) of a corner foot (19) are in each case arranged at the two outer portions (29a,29b;32a,32b) of an upper supporting edge (29) and of a lower bearing edge (32) of a domed shell plate (28) of the corner foot (19).
3. The central feet and/or the corner feet according to claim 2, characterised in that the lower rivet stems (35,35) of the shell plate (28) of the corner feet (19-22) are arranged so as to be inwardly offset with respect to each other, in a parallel way with respect to the upper rivet stems (34,34), in the vertical direction corresponding to the vertical distance (36) of the upper support edge (29) and of the lower bearing edge (32) of the corner feet (19-22).
4. The central feet and/or the corner feet according to claim 3, characterised in that the lower rivet stems (35,35) are respectively moulded or welded to a leg (44,45) that is inwardly angled from the two outer edges (28a,28b) of the shell plate (28) of a corner foot (19).
5. The central feet and/or the corner feet according to one of the claims 2 to 4, characterised in that one upper and one lower rivet stem (34,35) of the shell plate (28) of a corner foot (19-22) is in each case formed by the two bent ends of a pipe section (37) and in that the pipe sections (37) are moulded or welded to two outer legs (38,39) that are inwardly angled from the shell plate (28).
6. The central feet and/or the corner feet according to claim 1, characterised by two lateral central feet (25,26) and one rear central foot (23) in the shape of an open box (46), having an upper wall (47) that features a supporting surface (48) and a lower wall (49) having a bearing surface (50), two pipe sections (53,53) that are moulded or welded to the two side walls (51,52) of the box (46), having one lower rivet stem (35) and two upper rivet stems (34,34) in each case, the upper rivet stems being moulded or welded to the supporting surface (48) of the upper box wall (47).
7. The central feet and/or the corner feet according to claim 1, characterised by two lateral central feet (25,26) in the form of an open box (46), having an upper wall (47) that features a supporting surface (48) and having a lower wall (49) having a bearing surface (50) as well as two pipe sections (53,53) that are moulded or welded to the two bevelled side walls (51,52) of the box (46), having two bent ends, which form an upper and a lower rivet stem (34,35) in each case.
8. The central feet and/or the corner feet according to claim 6 or 7, characterised in that the lower wall (49) of the two lateral central feet (25,26), on the inside, possesses a supporting surface (54), in each case for one of the two outer ends (56) of a stiffening web (55) of the understructure bottom (18), the ends being bent downwardly, and in that at least one tubular rivet stem (57) is formed so as to protrude from the lower box wall (49) of the lateral central feet (25,26), the rivet stem being oriented inwardly, for riveting the central feet to the ends (56) of the stiffening web (55) of the understructure bottom (18).
9. The central feet and/or the corner feet according to one of the claims 1 to 8, characterised in that the rivet stems (34,35) are moulded to the corner feet and to the central feet (19-22;23,25,26) of the understructure (17) of the transport and storage container (6) by means of rolling.

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